Frontend Developer (Remote/Hybrid)

*We are only able to accept applicants with valid permission to work in Japan and fluency in Japanese. Thank you for your kind understanding. ------------------------【Leading Domestic Payment】 ■ Position: Frontend Engineer (Global Team)■ Location: Tokyo Office (Remote/Hybrid)■ Work Style: Hybrid Work / Super Flextime■Salary: 8M-12M JPYAs a founding core member of a newly established global engineering division, you will drive in-house frontend development and spearhead product evolution at an unprecedented pace to democratize daily finance. ■ Responsibilities・Develop, deploy, and continuously optimize highly responsive user interfaces for modern web applications, including mini-apps integrated into the main payment platform, comprehensive PC trading dashboards, and internal business management tools.・Collaborate directly with cross-functional teams, including Product Managers and UI/UX Designers, to customize and elevate the digital asset management experience for a massive user base.・Lead the rapid prototyping and iterative development of entirely new product features and major structural design renewals to validate concepts before full-scale deployment.・Drive technical excellence across the codebase by implementing rigorous unit testing (TDD), eliminating technical debt, and refining overarching frontend architectures.・Continuously evaluate and integrate the latest frontend technologies and frameworks (Vue.js, TypeScript, etc.) to ensure optimal application performance and a seamless investment journey for end-users. ■ Requirements・3 to 5 years of in-house web product development experience.・Hands-on proficiency with HTML/CSS, JavaScript, Vue.js, and TypeScript.・Solid understanding of modern web development methodologies and JS frameworks.・Practical experience with REST API integration.・A highly autonomous mindset with a strong sense of ownership.・Fluent or JLPT N1 equivalent Japanese. ■ Preferred Qualifications・Application development experience within the securities or finance sectors.・Practical experience with Test-Driven Development (TDD) and Agile methodologies.・Track record of monitoring and optimizing frontend performance.・Experience building CI/CD infrastructure and deployment pipelines.・Background in operating and scaling in-house digital services.・Business-level English proficiency. ■JOB ID: VAC-293634/ *Finish your application by filling out the required information.We look forward to your application.